Finding the Third Proportional to 690,584 and 1,509,254

Step by Step Solution

1. Step 1: Write the proportion equation
   690,584 : 1,509,254 = 1,509,254 : x
2. Step 2: Convert to fraction form
   690,584/1,509,254 = 1,509,254/x
3. Step 3: Cross multiply
   690,584x = 1,509,254 × 1,509,254
4. Step 4: Simplify right side
   690,584x = 2,277,847,636,516
5. Step 5: Solve for x
   x = 2,277,847,636,516/690,584
6. Step 6: Final answer
   x = 3,298,436.74